﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;

namespace Xceed.Silverlight.Data
{
  internal class FilteringHandler : HandlerBase
  {
    internal FilteringHandler()
    {
    }

    internal FilteringHandler( FilteringHandler copy )
    {
      m_filter = copy.m_filter;
      m_filterDataItem = copy.m_filterDataItem;
      m_filterExpression = copy.m_filterExpression;
    }

    #region Filter Property

    internal Predicate<object> Filter
    {
      get
      {
        return m_filter;
      }
      set
      {
        if( m_filter != value )
        {
          m_filter = value;

          this.RaiseSourceChanged(
            new SourceChangedEventArgs( SourceChangedType.FilteringChanged ) );
        }
      }
    }

    private Predicate<object> m_filter; //null

    #endregion

    #region FilterDataItem Property

    internal Predicate<RawDataItem> FilterDataItem
    {
      get
      {
        return m_filterDataItem;
      }
      set
      {
        if( m_filterDataItem != value )
        {
          m_filterDataItem = value;

          this.RaiseSourceChanged(
            new SourceChangedEventArgs( SourceChangedType.FilteringChanged ) );
        }
      }
    }

    private Predicate<RawDataItem> m_filterDataItem; //null

    #endregion

    #region FilterExpression Property

    internal FilterExpressionBase FilterExpression
    {
      get
      {
        return m_filterExpression;
      }
      set
      {
        if( m_filterExpression != value )
        {
          m_filterExpression = value;

          this.RaiseSourceChanged(
            new SourceChangedEventArgs( SourceChangedType.FilteringChanged ) );
        }
      }
    }

    private FilterExpressionBase m_filterExpression; //null

    #endregion
  }
}
